... .Finish:Paint Epoxy Powder 3.Size:1"-12" 4.FM & UL certifications. Ductile iron grooved fittings.1.coupling,cross,elbow,tee ... ,cap,mechanical tee,mechanical cross,reducer etc.2.Certificate: FM/UL approved3. Painting: Epoxy, galvanized4. Pressure: 300 psi, 500 psi5. Material ... ASTM A536 Standard6. Payment: T/T L/C7. Delivery time: with 30 days or as customers’ requirement